package com.bluestone.util;


public interface ValueStackFactory {
    /**
     * Get a new instance of {@link com.bluestone.util.ValueStack}
     *
     * @return  a new {@link com.bluestone.util.ValueStack}.
     */
    ValueStack createValueStack();
    
    /**
     * Get a new instance of {@link com.bluestone.util.ValueStack}
     *
     * @param stack an existing stack to include.
     * @return  a new {@link com.bluestone.util.ValueStack}.
     */
    ValueStack createValueStack(ValueStack stack);
}
